/** \internal Frees memory allocated with handmade_aligned_malloc */ EIGEN_DEVICE_FUNC inline void handmade_aligned_free(void *ptr) { if (ptr) { EIGEN_USING_STD(free) # SIGSEGV (Segmentation fault) in here. free(*(reinterpret_cast<void**>(ptr) - 1)); } } Member mvieth commented ...
<math.h> using namespace std; using namespace Eigen; const double DERIV_STEP = 1e-5; const int... : " << roi << endl; if(roi > 0) { params = paramsNew; u *= max(1.0/3.0, 1-pow(2 常见的几种范数 范空间的性质,赋范空间中序列的收敛性与映射的连...
using namespace std; class B { public: C c; B() { cout << (uint64_t)this << endl; } ~B(){} }; int main() { shared_ptr<B> b = make_shared<B>(); b->c.v = VectorXd(5); // << crashes here // SIGABRT on `Eigen::internal::aligned_free` when trying to do `std...
classVector4d{usingaligned_double4=__attribute__((aligned(32)))double[4];public:Vector4d(){}Vector4d(doubled1,doubled2,doubled3,doubled4){data[0]=d1;data[1]=d2;data[2]=d3;data[3]=d4;}void*operatornew(std::size_tcount){void*original=::operatornew(count+32);void*aligned=reinte...
std::cout << result << std::endl;deleteinput1;deleteinput2;return0; } 崩溃前的输出为 addressofinput1:0x1ceae70addressofinput2:0x1ceaea0 很诡异吧,似乎刚才我们设置的内存对齐都失效了,这两个输入变量的内存首地址又不是32的倍数了。
Eigen::Matrix<T, Eigen::Dynamic, 1> positive_ordered_free(const Eigen::Matrix<T, Eigen::Dynamic, 1>& y) { using Eigen::Matrix; using Eigen::Dynamic; using stan::math::index_type; typedef typename index_type<Matrix<T, Dynamic, 1> >::type size_type; stan::math::check_positive_orde...
#include"Eigen/Dense"#include<functional>usingnamespacestd;usingnamespaceEigen;MatrixXdGenerate2DMatrixByEigen(){// 直接使用内置的Random,产生均匀分布随机矩阵MatrixXdm=MatrixXd::Random(3,3);// 也可以调用自定义的随机数生成函数填充数据// MatrixXd m = MatrixXd::Zero(3,3).unaryExpr(std::bind(Gene...
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Eigen是一个开源的C++库，主要用来支持线性代数，矩阵和矢量运算，数值分析及其相关的算法。Eigen 目前（...
using namespace Eigen; typedef struct { PyObject_HEAD MatrixXd *matrix=nullptr; } PyMatrixObject; // 对应 python 中类创建时的 __new__ static PyObject * PyMatrix_new(PyTypeObject *type, PyObject *args, PyObject *kwds) { std::cout << type << std::endl; ...